Triple Gear Pin Wear
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
Topic author - Posts: 121
- Joined: Mon Jan 07, 2019 8:13 am
- First Name: Jason
- Last Name: Given
- * REQUIRED* Type and Year of Model Ts owned: 26 Roadster, 25/26 speeder
- Location: St. Paiul
Triple Gear Pin Wear
The transmission book states to replace the triple gear pins if they have 0.005 wear. The pins measured 0.677, 0.677, and 0.675.
What is your thought on the 0.675 pin. Replace or keep? If I replace should all 3 be replaced to have the same OD for new bushing reaming.
What is your thought on the 0.675 pin. Replace or keep? If I replace should all 3 be replaced to have the same OD for new bushing reaming.
-
- Posts: 365
- Joined: Thu Jan 17, 2019 11:52 am
- First Name: David
- Last Name: Menzies
- * REQUIRED* Type and Year of Model Ts owned: 1926 Touring and 1915 Touring both Canadian models
- Location: British Columbia
- MTFCA Number: 27825
- Board Member Since: 2012
Re: Triple Gear Pin Wear
I don't think it enough to worry about but pressing out the pins and pressing in new pins is not a big deal and honing the new bushings is an easy task. If you have any concerns replace them while you have it out.
-
- Posts: 180
- Joined: Tue Jan 08, 2019 8:13 pm
- First Name: Hal
- Last Name: Schedler
- * REQUIRED* Type and Year of Model Ts owned: 24 Speedster, 23 RA, 25 Fordor
- Location: Sacramento
- MTFCA Number: 16688
- MTFCI Number: 19356
- Board Member Since: 2005
Re: Triple Gear Pin Wear
Just a heads up: It's been a long time since I did transmission work, but I know the pins have to come out in the correct direction. I don't remember if you push the pins out from on top or the bottom. The pins have a slight taper. PS. As of today I have had 87 birthdays and am still going strong.
-
- Posts: 144
- Joined: Sat Jan 26, 2019 3:12 pm
- First Name: Herman
- Last Name: Kohnke
- * REQUIRED* Type and Year of Model Ts owned: 1914 Roadster, 1922 Coupe
- Location: Clare, Iowa
Re: Triple Gear Pin Wear
The stock Ford pins are .676-50, to .677. All the New Old Stock Triple Gears I have, They are reamed by Ford and have a .680 hole in them. The K. R. Wilson triple Gear reamer, also reams a hole to .680.jagiven wrote: ↑Tue Feb 19, 2019 10:57 pmThe transmission book states to replace the triple gear pins if they have 0.005 wear. The pins measured 0.677, 0.677, and 0.675.
What is your thought on the 0.675 pin. Replace or keep? If I replace should all 3 be replaced to have the same OD for new bushing reaming.
.005 thousandths clearance is already wore out. At .005 thousandths, the gear will run cock eyed, and eat on the flywheel, to the center side.
Herm.
-
- Posts: 365
- Joined: Thu Jan 17, 2019 11:52 am
- First Name: David
- Last Name: Menzies
- * REQUIRED* Type and Year of Model Ts owned: 1926 Touring and 1915 Touring both Canadian models
- Location: British Columbia
- MTFCA Number: 27825
- Board Member Since: 2012
Re: Triple Gear Pin Wear
I think you can push the pins out either way, however pressing them in should be done from the inner side for ease of alignment. The pressed in portion is slightly larger than the main portion, by about .001. They are not tapered. They could be pressed in or out in either direction.
-
- Posts: 364
- Joined: Wed Jan 09, 2019 6:03 pm
- First Name: Stephen
- Last Name: Heatherly
- * REQUIRED* Type and Year of Model Ts owned: 26 coupe and 23 Runabout
- Location: St. Louis MO
Re: Triple Gear Pin Wear
The pins can ONLY be removed by tapping them out in the direction of the magnets or in other words smack on the long end that the gears go on. The pins are installed in the opposite direction. Doing it wrong will crack and ruin the flywheel. If they're only worn .002" I wouldn't worry about it. You're far more likely to have a problem trying to replace the pins than if you just leave well enough alone and use the old pins.
Stephen
Stephen
-
- Posts: 144
- Joined: Sat Jan 26, 2019 3:12 pm
- First Name: Herman
- Last Name: Kohnke
- * REQUIRED* Type and Year of Model Ts owned: 1914 Roadster, 1922 Coupe
- Location: Clare, Iowa
Re: Triple Gear Pin Wear
The old pins are normally .002 flat. fitting a new round bushing to a flat pin will not last very long, with out excessive wear, on bushing, and gear teeth.
Herm.
Herm.
-
Topic author - Posts: 121
- Joined: Mon Jan 07, 2019 8:13 am
- First Name: Jason
- Last Name: Given
- * REQUIRED* Type and Year of Model Ts owned: 26 Roadster, 25/26 speeder
- Location: St. Paiul
Re: Triple Gear Pin Wear
What do you mean "The old pins are normally. 002 flat"?Kohnke Rebabbitting wrote: ↑Fri Feb 22, 2019 6:38 pmThe old pins are normally .002 flat. fitting a new round bushing to a flat pin will not last very long, with out excessive wear, on bushing, and gear teeth.
Herm.
I have never torn into an engine before, so this is all new to me.
Thanks,
-
- Posts: 144
- Joined: Sat Jan 26, 2019 3:12 pm
- First Name: Herman
- Last Name: Kohnke
- * REQUIRED* Type and Year of Model Ts owned: 1914 Roadster, 1922 Coupe
- Location: Clare, Iowa
Re: Triple Gear Pin Wear
Normally, the old pins will be .002 thousandths smaller from wear, on one side, compared to a 1/4 turn with the Mic. of the other side of the pin, which in many transmissions will be standard, or close to it. The pins should always be replaced.jagiven wrote: ↑Fri Feb 22, 2019 10:54 pmWhat do you mean "The old pins are normally. 002 flat"?Kohnke Rebabbitting wrote: ↑Fri Feb 22, 2019 6:38 pmThe old pins are normally .002 flat. fitting a new round bushing to a flat pin will not last very long, with out excessive wear, on bushing, and gear teeth.
Herm.
I have never torn into an engine before, so this is all new to me.
Thanks,
There two companies making pins. One is junk, the other makes good pins, but not always the correct diameter. Just make sure they are all .677.
Also, always check the press in end, of the pin, as I have found some needing taken down in size. If you don't, the flywheel will crack.
Herm.
-
- Posts: 596
- Joined: Sun Jan 06, 2019 6:10 pm
- First Name: Brad
- Last Name: Kirtner
- * REQUIRED* Type and Year of Model Ts owned: 1924 Touring Car, 1927 Closed Cab TT, 1927 Coupe
- Location: Salem, Virginia
- MTFCA Number: 50618
- Board Member Since: 2018
Re: Triple Gear Pin Wear
Herm, what are the two companies and who makes the better ones? Who stocks the better ones?
-
- Posts: 144
- Joined: Sat Jan 26, 2019 3:12 pm
- First Name: Herman
- Last Name: Kohnke
- * REQUIRED* Type and Year of Model Ts owned: 1914 Roadster, 1922 Coupe
- Location: Clare, Iowa